Date: Fri, 9 Sep 2011 08:09:06 -0400 From: Andrew Duane <aduane@juniper.net> To: Peter Wemm <peter@wemm.org>, Peter Grehan <grehan@freebsd.org> Cc: "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org>, "freebsd-arch@freebsd.org" <freebsd-arch@freebsd.org> Subject: RE: Soliciting opinions on an extension of the bootinfo structure Message-ID: <AC6674AB7BC78549BB231821ABF7A9AEB748D6C093@EMBX01-WF.jnpr.net> In-Reply-To: <CAGE5yCr1x2NB1pHYg6qPQPxFvWYA8bMus3gqM3nYkPCVbEpv8w@mail.gmail.com> References: <AC6674AB7BC78549BB231821ABF7A9AEB748F9A329@EMBX01-WF.jnpr.net> <4E6940D3.4070801@freebsd.org> <CAGE5yCr1x2NB1pHYg6qPQPxFvWYA8bMus3gqM3nYkPCVbEpv8w@mail.gmail.com>
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That's correct. This is actually part of a larger effort to open up the MIPS code to a range of new bootstraps. Some bootstraps use the bootinfo facility extensively. It's an easy way to pass some simple information to the kernel without the clutter of metadata and other such things. ................................... Andrew Duane Juniper Networks o +1 978 589 0551 m +1 603-770-7088 aduane@juniper.net -----Original Message----- From: Peter Wemm [mailto:peter@wemm.org] Sent: Thursday, September 08, 2011 6:48 PM To: Peter Grehan Cc: Andrew Duane; freebsd-hackers@freebsd.org; freebsd-arch@freebsd.org Subject: Re: Soliciting opinions on an extension of the bootinfo structure On Thu, Sep 8, 2011 at 3:25 PM, Peter Grehan <grehan@freebsd.org> wrote: >> I'm proposing an extension framework for the bootinfo structure used >> to pass information from the bootstrap/loader to the kernel. Although >> I'm only proposing this for the MIPS bootinfo, it's completely >> applicable to any of them. >> >> What I propose is adding an optional platform extension structure: >> bootinfo_pext, surrounded by #ifdef BOOTINFO_PEXT > > Any reason not to put the vendor bits into another piece of loader metadata > ? That seems the extensible way to add additional info from the loader, > rather than extending bootinfo (as was the case pre-loader days). > > later, It sounds like they're not using loader, which is probably a reasonable thing for their environment. -- Peter Wemm - peter@wemm.org; peter@FreeBSD.org; peter@yahoo-inc.com; KI6FJV "All of this is for nothing if we don't go to the stars" - JMS/B5 "If Java had true garbage collection, most programs would delete themselves upon execution." -- Robert Sewell
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